A separate currency system- this is pretty intuitive. you don't want to be using the dollar which makes it easier to manipulate via control of the greater American economy. A separate currency can still feel the affects of the American and world economy but there is more flexibility.
credit system- Every country borrows and so does it citizens and you don't want the Western credit systems to downgrade you to "junk." I believe Russia and China have started to implement their own system.
strong central banking- allows good monetary policy which would include the printing of money for strong social programs that would end up in the hands or to the benefit of the lower/middle class Africans and trickle to the wider diaspora
a manufacturing base- allows you to sell finished goods/products instead of relying on the commodities markets of oil, minerals, etc and importing from Asia/Europe
For African Americans, we need to go into banking and infiltrate the very institutions giving us bad loans, refusing to give us stimulus, etc